Localized4fStates and Dynamic Jahn-Teller Effect inPrO2

Fullerene superconductivity and the dynamic jahn-teller effect.

Experimental evidence of a dynamic Jahn - Teller effect in C

S. E. Canton, 2, ∗ A. J. Yencha, E. Kukk, J. D. Bozek, M. C. A. Lopes, G. Snell, and N. Berrah Department of Physics, Western Michigan University, Kalamazoo MI 49008 Lawrence Berkeley National Laboratory, ALS, University of California, Berkeley CA 94720 Department of Chemistry, State University of New-York at Albany, Albany, NY 12222 Department of Physical Sciences, Oulu University, Linnanmaa, ...

Experimental evidence for the dynamic Jahn-Teller effect in La0.65Ca0.35MnO3.

Recently, it has been argued that a strong electron-phonon interaction arising from the Jahn-Teller splitting of the outer Mn d level plays a crucial role in understanding the nonmetal-to-metal transition observed in the La12xAxMnO3 (A5Ca,Sr,Ba! system. We show, by neutron powder diffraction, that La0.65Ca0.35MnO3 exhibits an anomalous volume and oxygen/manganese displacement change around Tc ,...

Dynamic spin Jahn-Teller effect in small magnetic clusters

We study the effect of spin-phonon coupling in small magnetic clusters, concentrating on a S=1/2 ring of 4 spins coupled antiferromagnetically. If the phonons are treated as classical variables, there is a critical value of the spin-phonon coupling above which a static distortion occurs. This is a good approximation if the zero point energy is small compared to the energy gain due to the distor...

Optical Evidence for the Dynamic Jahn-Teller Effect in Nd0.7Sr0.3MnO3.

S. G. Kaplan,1,* M. Quijada,1 H. D. Drew,1,2 D. B. Tanner,3 G. C. Xiong,2 R. Ramesh,2 C. Kwon,2 and T. Venkatesan2 1Laboratory for Physical Sciences, College Park, Maryland 20740 2Center for Superconductivity Research, Department of Physics, University of Maryland at College Park, College Park, Maryland 20742 3Department of Physics, University of Florida, Gainesville, Florida 32611 (Received 12...